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PATCH [3/4] arm: Add Tag_BTI_use build attribute

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bfd/
2021-07-06  Andrea Corallo  <andrea.corallo@arm.com>

	* elf32-arm.c (elf32_arm_merge_eabi_attributes): Add
	'Tag_BTI_use' case.

binutils/
2021-07-06  Andrea Corallo  <andrea.corallo@arm.com>

	* readelf.c (arm_attr_tag_PAC_extension): Declare.
	(arm_attr_public_tags): Add 'PAC_extension' lookup.

elfcpp/
2021-07-06  Andrea Corallo  <andrea.corallo@arm.com>

	* arm.h: Define 'Tag_BTI_use' enum.

gas/
2021-07-06  Andrea Corallo  <andrea.corallo@arm.com>

	* config/tc-arm.c (arm_convert_symbolic_attribute): Add
	'Tag_BTI_use' to the attribute_table.

include/
2021-07-06  Andrea Corallo  <andrea.corallo@arm.com>

	* elf/arm.h (elf_arm_reloc_type): Add 'Tag_BTI_use'.
This commit is contained in:
Andrea Corallo 2021-07-05 17:14:47 +02:00
parent 4b53503018
commit b81ee92f03
5 changed files with 9 additions and 0 deletions
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1
bfd/elf32-arm.c
View File

@ -14614,6 +14614,7 @@ elf32_arm_merge_eabi_attributes (bfd *ibfd, struct bfd_link_info *info)
case Tag_MVE_arch:
case Tag_PAC_extension:
case Tag_BTI_extension:
case Tag_BTI_use:
/* Use the largest value specified. */
if (in_attr[i].i > out_attr[i].i)
out_attr[i].i = in_attr[i].i;

5
binutils/readelf.c
View File

@ -16149,6 +16149,10 @@ static const char * arm_attr_tag_BTI_extension[] =
"BTI instructions permitted in the NOP space",
"BTI instructions permitted in the NOP and in the non-NOP space"};
static const char * arm_attr_tag_BTI_use[] =
{"Compiled without branch target enforcement",
"Compiled with branch target enforcement"};
#define LOOKUP(id, name) \
{id, #name, 0x80 | ARRAY_SIZE(arm_attr_tag_##name), arm_attr_tag_##name}
static arm_attr_public_tag arm_attr_public_tags[] =
@ -16191,6 +16195,7 @@ static arm_attr_public_tag arm_attr_public_tags[] =
LOOKUP(48, MVE_arch),
LOOKUP(50, PAC_extension),
LOOKUP(52, BTI_extension),
LOOKUP(74, BTI_use),
{64, "nodefaults", 0, NULL},
{65, "also_compatible_with", 0, NULL},
LOOKUP(66, T2EE_use),

1
elfcpp/arm.h
View File

@ -308,6 +308,7 @@ enum
Tag_MVE_arch = 48,
Tag_PAC_extension = 50,
Tag_BTI_extension = 52,
Tag_BTI_use = 74,
Tag_nodefaults = 64,
Tag_also_compatible_with = 65,
Tag_T2EE_use = 66,

1
gas/config/tc-arm.c
View File

@ -33518,6 +33518,7 @@ arm_convert_symbolic_attribute (const char *name)
T (Tag_MVE_arch),
T (Tag_PAC_extension),
T (Tag_BTI_extension),
T (Tag_BTI_use),
/* We deliberately do not include Tag_MPextension_use_legacy. */
#undef T
};

1
include/elf/arm.h
View File

@ -329,6 +329,7 @@ enum
Tag_MVE_arch = 48,
Tag_PAC_extension = 50,
Tag_BTI_extension = 52,
Tag_BTI_use = 74,
Tag_nodefaults = 64,
Tag_also_compatible_with,
Tag_T2EE_use,